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Finding the Fourth Proportional to 67,138, 92,650.60 and 37,330

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Solution

The fourth proportional to 67,138, 92,650.60 and 37,330 is: 51,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,138 : 92,650.60 = 37,330 : x
  2. Step 2: Convert to fraction form
    67,138/92,650.60 = 37,330/x
  3. Step 3: Cross multiply
    67,138x = 92,650.60 × 37,330
  4. Step 4: Simplify right side
    67,138x = 3,458,646,898
  5. Step 5: Solve for x
    x = 3,458,646,898/67,138
  6. Step 6: Final answer
    x = 51,515.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.